Pump.



PATENTBD 0011.18, 1904.

s. M. FULTON.

PUMP.

APPLICATION HLED Nov.1e, 1903.

N0 MODEL. 'I

2 SET/Sf-SHEBT 2.

zw/@fm1 UNTTED STATES Patented October 18, 1904.

PATENT OFFICE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 772,830, dated October 18, 1904.

Apparition niet November 1s, 190s. serial No. 181,695.- N0 modela To @ZZ whom, it, may concern:

Be it known that I, SAMUEL M. FUL'roN, a

\ citizen of the United States, residing at Po'- mona, in the county of Los Angeles, State of California, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had therein tothe accompanying drawings.

This invention relatesto'pumps, and-particularly Vto a'structure of valved piston and cooperating check-valve. c

The invention has for an object to improve the construction 'of the valved piston so as to provide a'larger and freer water-'passage therethrough and to furnish a structure which will sustain a heavy pressure in deep-well pumping and not become easily clogged with sand or other matter Vcarried by the water.

A further object of the invention is `to improve thefconstruction of the valve-disks and of the piston-frame for carrying the packings and coperating with said disks.

' Another object of the linvention is to provide improved means for connecting the piston to the cage of the check-valve, so thatthe latter may be placed in position and removed vfrom the well-casing through the medium of the valved piston.

Other and further objects and advantages of the invention will be hereinafter set forth, and the novel features thereof defined by the appended claims. Y Y

In the drawings, Figure lis a central vertical section through the valved piston and check-valve. Fig. 2 is a perspective ofthese parts removed from the well-casing. Fig. 3 is an elevation, with parts in section, of a modification showing a double-valved piston construction'. Fig. 4 is a cross-section on the line 4 t of Fig. 3., Fig. 5 is a similar view on the line 5 5 of Fig. 3. Fig. 6 is a detail perspective of the frame forthe valved piston, and Fig. 7 is a section on the line 7,7 of Fig. 2.

Like letters of reference refer to like parts in the several figures of the drawings.

The vletter A designates a well-casing which may be of any suitable construction, and is provided with a cylinder-cap A', carrying at its free end a water-chamber having avalveseatA2, with which the check-valve B, carried by the valve--cage B', Ais adapted to coperate. This check-valve is slidingly mounted in a bearing B2 in the lower portion of the cage by means of the shank B3, and the downward movement of said shank is limited by the collar B4L at the upper end of the shank. The valvecage'rests at its lower end upona shoulder A3, carried bythe cylinder-cap-A, while a spring packing-ring F is mounted upon the arms B" of the cage. The packing F is composed of a series of segmental springs bolted to the arms B5 ofthe cage at one end F and reduced in width at the opposite freek end F2, so as to pass .behind the bolted end and between the bolts thereof to forman elastic ring. rhe upper portion of the cage comprises an annular portion B, having at opposite points thereon radially-extending lugs B7, adapted to coperate with the cage-lifting means hereinafter described. *Y 1 1 The valved piston O is carried at the lower end of a suitable rod C in any desired manner-for instance, bymeans of the stem O2, threadedinto the pump-rod C and the hub C3 of the piston-frame. This hub has a series of radially-extending spokes Of, enlarged at their outer threaded. ends O5. At the lowerv end of the piston-frame an eXteriorly-threadedV ring C is provided, and at the upper portion a recessed ring G7 is disposed and provided upon its upper surface with a Valveseat OS, adapted to coperate with a valve or clapper D. The upper surface O of the hub C3 is disposed at a distance below the valve-seat O8 to provide the largestwater-passage for the free discharge of ythe piston. A cushion Ow may also be provided at this point for `Contact with the lowerend D of the valve or clapper, if, desired. The lower portion of this valve is also outwardly curved, so that the water striking the same is guidedr outwardly around the valve and the formation of eddies beneath the valve will be entirely prevented. The under surface of the valve is provided with a packing D3, suitably secured thereto. As-shown atthe lower part of Fig. 3, this form of valve may be used alone in connection with the piston; but if it be desired to secure an additional water-discharge area the valve may be provided with a series of apertures D4E there- IOO through, as shown in Fig. l and the upper l portion of Fig. 3, which apertures are adapted to be closed by a valvedisk D5, slidingly mounted upon a post D, extending upward from the valve D, while the upward movement of this disk D5 may be limited by the nut or collar D7, threaded upon the post Dc. The piston-frame is provided with the usual iexible iiacking-rings E, which are adapted to be secured in position by means ot' interiorly-threaded rings EQ screwed upon the periphery ot' the valve-spokes and adapted to clamp the lower edge ot' the packings E between the adjacent faces of the rings and the under face of the recessed ring C7 at the top ot' the frame. Each of the rings E is formed with the usual recess E2 to permit the proper operation of the packing-rings, while the several rings are secured in position by means of the locking-ring E3, threaded upon the lower portion C of the valve-casing. Then it is desired to use the valved piston for the purpose of inserting the check-valve or removing the same from the well-casing, this clan'ipingring E may be provided with depending -lugs E", adapted to engage beneath the lugs B' for the purpose ot' supporting the valve-cage and to be disengaged from said lugs by a partial rotation ot' the piston. In Fig. 3 a modilied application of the invention is shown in which these hooks are omitted Jfrom the lower piston and two pistons are used, as in the doublevalved piston-pump, the upper piston being provided with a main valve .D and an auxiliary disk D, vhile the lower piston is provided with a valve I), having no apertures therethrough.

In the operation ot' the invention it will be seen that in the rising movement of the piston the valves at the upper portion thereof close, thus carrying the body of water above the piston upward in the pumping action. while in the return movement these valves open, as shown in Figs. l and 2, thus providing the largest and freest water-passage through the piston to reduce the resistance to the piston to a minimum, and thus effect a pumping action requiring the least power and one particularly adapted for deep wells, where the extended length of rod is necessary. Furthermore, the construction of valve-cage shown in connection with the enlarged chamber within the cylindercap provides an extended water area a rou nd the check-valve, which is thus left free for operation and eectually prevented from clogging due to the presence of sand and other matter in the Water. It will also be seen that the structure of valve-frame permits the assembling' and disconnection ot the several parts for the purposes of construction and repair in the simplest manner, thus obviating the necessity ot' skilled labor and producing a valved piston adapted to stand the strain otl working under a heavy load and one which is both simple and economical in construction and manufacture. The means carried by the valved piston for connection and disconnection with the valve-cage permit the latter to be lowered into position upon its seat, when it may be released from the piston by a partial rotation thereof, and the parts may be again connected together for thc purpose olr removingthe check-valve when desirable by a simple reversal ot' this operation.

It will be obvious that changes may be madel in the details oi construction and conligin'ation without departing from the spirit oll the invention as defined by the appended claims.

Havingdescribed my invention and set loi-lh its merits, what I claim, and desire to secure by Letters Patent, is--- l. In a pump, a piston-frame provided upon its upper face with a bearing-seat. ahub wil hin said frame disposed below said seat and having a valve-seat upon its upper laee, radialing spokes from said hub having a threaded face at their lree ends, packii'igs secured to said tace, and a valve carried by a stem trom said hub and having laces in dillerent horizontal planes to contact with said seats,

Q. In apump, a l'iiston-'lirame having a valveseat at one end, a hub within said l'rame ol' less length than the frame, radiating spokes lrom said hub exteriorly threaded at their l'ree ends, a ring at the upper portion ol said spokes, packings and packing-rings threaded upon said spokes, and a clamping-ring threaded upon the lower portion of said spokes to retain the packings in position.

3. In a pump, a piston-frame comprising a hub, radiating spokes therefrom exteriorly threaded at their free ends, a ring at the upper portion of said spokes, packings and packing-rings threaded upon said spokes, a clamping-ring threaded upon the lower portion of said spokes to retain the packings in position, and depending hooks carried by a ring threaded upon said spokes at the lower portion ol' said trame.

4. In a pump, a cylinder-ca p provided with a valve-scat, a valve-cage carrying a cheeleval ve to rest upon said seat, lifting-lugs provided at the upper portion of said valve-cage, and a valved piston provided with hooks to engage said lugs by a rotation of the piston.

5. In a pump, a c\'linder-cap provided with a valve-seat, a valve-cage carrying a cheek-valve to rest upon said seat, lifting-lugs provided at the upper portion ol" said valve-cage, a, valved piston provided with hooks to engage said lugs by a rotation of the piston, a water-ehaml)er provided in said cylinder-cap above said valveseat, and a supporting-ilange for said cage at the upper portion of said chamber.

6. In a pump, a cylinder-cap provided with a valve-seat, a valve-cage carryi ng a check-val ve to rest upon said seat, lifting-lugs provided at the upper portion of said valve-cage, avalved piston provided with hooks to engage said lugs by a rotation of the piston, a water-cham- IOO IIO

ber provided in said cylinder-cap above said valve-seat,a supporting-liange for said cage at the upperportion of said chamber, a bearing-stem extending upward from said check'l valve, a centrally-disposed bearing for said stem at the -lower portion of said cage, and a packing-ring carried by said cage.

7. In a pump, apiston-framehavinga bearing-seat upon itsY upper face, a hub of less length than the frame within said frame and connected to said seat by radiating spokes having eXteriorly-threaded faces, a threaded' ring `at the lower portion of said spokes, packings 4secured upon the periphery of said spokes, and a slidingly-mounted valve adapted to seat upon said frame and provided with an outwardly-curved under face.

8. In a pump, a piston-frame having a bearing-seat upon its upper face, a hub connected to said seat by radiating spokes having eX- teriorly-threaded faces, a threadedring at the lower portion of said spokes, packings secured upon the periphery of Asaid spokes, an

apertured valve adapted to engage the seat upon said frame, a post extending upward l from said valve, and a disk slidingly mounted upon said postto controll the apertures in said valve.

9. In a pump, a piston-frame having a bearing-seat upon its upper face, a hub connected to said seat by radiating spokes having eX- teriorly-threaded faces, a threaded ring at the lower portion of said spokes, packings secured upon the periphery of said spokes, an

Vapertured valve adapted to engage. the seat upon said frame, a post extending upward from said valve, a disk slidingly mounted upon said lpost to control the apertures in said valve1 a check-valve cage disposed beneath said piston-frame and provided with oppo-` sitely-disposed lifting-lugs at its upper portion, and oppositely-disposed hooks carried by 'said frame to engage said lugs.

10. In apump., acylinder-cap provided with a valve-seat, a valve-cage carrying a checkvalve to cooperate with said seat, and a series SAMUEL M. FULTON.

Witnesses:

GEO. W. OGLE, W. D. (JASON. 

